rust TOKIO async TCP client and UDP logger example -- 2

Create a single example rust program using the tokio ([login to view URL]) async framework that implements the two following functions to interface to a networked device.

1. Async TCP client that connects to a device on TCP port 9760

a) Create an async reader function that reads messages from the device (not polling)

These messages are variable-length binary messages and must be read as bytes values (Not a text string).

Format in hex (<u8> 0x16, <u8> Length, <u8> 1 .. Length payload )

Messages are variable length unto 257 bytes (2-byte header + 255 bytes data)

Eg 16 04 00 0E 00 00

You need to read the first two bytes (ie 0x16, 0x04) to determine the variable payload length. The variable payload length is in the second byte, in this example case 4 bytes. Then you need to read the variable length payload to consume the entire message based on the length.

Display HEX dump of the bytes read for each full message.

Immediately re-queue async next read for the next message.

b) Create an async periodic timer, that every minute, sends a 2-byte binary message to the device, in hex 0x1600 on TCP port 9760.

2. In the same application create async logger listening on UDP port 30303 to log messages broadcast from the device.

   Read and display messages when received as text string - terminated (0xD, 0xA)  

I can make PCAP files (TCP and UDP) and the device available on the internet to test with for TCP code.

Provide all source and configuration files plus instructions to install on linux.

All code must be async not blocking or polling code.

RUST Programming Local Area Networking

Nº del proyecto: #34409794

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